KR20120106048A - Anchor unit of orthodontic treatment - Google Patents

Abstract

PURPOSE: An anchor unit for dental clinic correction is provided to variously set up operation point and operation direction of correcting force. CONSTITUTION: An anchor unit for dental clinic correction comprises anchor screws(110), support arms(120), and holders(130). The anchor screw is implanted in the jaw bone. The support arm is included in the anchor screw, and is extended towards a direction getting away from the central axis. The holder is included in the support arm in order to connect entraining members. The anchor unit for dental clinic correction includes a fixture which fixes the support arm to the anchor screw by being combined with one end of the anchor screw. The anchor screw has a female screw which is formed at one end of the anchor screw and fixing bolts.

Description

Orthodontic anchor unit {ANCHOR UNIT OF ORTHODONTIC TREATMENT}

The present invention relates to an orthodontic anchor unit applied as an anchor in an orthodontic procedure, and more particularly to an orthodontic anchor unit capable of changing the operating point and the direction of action of the orthodontic force.

For modern people, appearance, especially impression, serves as a criterion for judging people during job interviews and admissions, and plays a very important role in social life, taking up a large proportion in interpersonal relationships.

Accordingly, despite the age and sex, artificial plastic surgery on the human body is becoming very popular. Among them, plastic surgery for the main organs of the face, such as eyes, nose, mouth, etc., has been in the spotlight. On the other hand, the shape of the teeth and teeth or jaw influences the overall impression, in recent years orthodontics to improve the shape of the jaw or evenly the teeth and to treat the malocclusion of the upper teeth and lower teeth.

However, there are cases where the abnormality of the upper and lower teeth meshing or facial skeletal structure is too severe. In this case, orthognathic surgery is applied to correct the abnormality of the facial skeleton itself with surgery to make a functional and aesthetic face. .

In other words, Orthognathic Surgery may be used when the improvement of facial shape and improvement of dental function are incomplete with only the orthodontic treatment that adds orthodontic force to jawbone or dentition. Particularly, in the case of growing children, the orthodontic surgery can be avoided by the method of skeletal improvement through orthodontic treatment by the addition of orthodontic power, but in the case of the adult whose growth has been completed, the above-described orthodontic treatment may be difficult. The orthodontic surgery can be used.

The orthognathic surgery, also called jaw correction surgery or simply jaw surgery, corrects this variation in shape and size when the maxilla (bone) or mandible (bone) is out of normal and has an excess, lack, or asymmetric growth state. Says surgery.

The orthognathic surgery generally results in a change in the position of the jaw bone through the osteotomy and recombination or resection of the jawbone, and thus a more beautiful face line can be formed, but instead of cutting the jaw bone as in the orthodontic surgery, Orthodontic surgery to improve the shape of jawbone is also applied in the field of orthodontics.

In the orthodontic treatment or orthodontic surgery, a fixed source for the addition of orthodontic force, that is, a dental orthodontic anchor is fixed to the jaw bone, and an orthodontic member such as an elastic body or a wire such as a rubber band or a spring for traction of the jaw bone or teeth is connected to the anchor. As a result, the corrective force is applied to the jaw bone or teeth.

As an example of the orthodontic treatment, the orthodontic treatment is generally performed using a dental orthodontic device using a bracket or wire of metal or ceramic material, and a traction member having elasticity such as a rubber band or a spring to move the orthodontic teeth It is connected to the orthodontic anchor, ie orthodontic anchor.

In order to perform the orthodontic treatment as described above, the anchoring source, that is, the anchor must be fixed in the oral cavity, especially the gum and buried in the upper and / or lower jaw, the orthodontic device is connected to the anchoring source By providing corrective force to the jaw or jaw, the wrong arrangement of the teeth or abnormal shape of the jaw can be gradually redefined evenly.

The orthodontic anchor for performing the orthodontic treatment is implanted in the soft tissues and jaw bone, particularly the alveolar bone of the gum, as an example of the anchor is a screw type implant screwed into the insertion hole of the jaw bone is applied.

However, the fixed circle, that is, the orthodontic anchor unit, which is placed in the jaw for the orthodontic treatment, is difficult to change the corrective force operating direction and corrective force operating reference point in the state of being placed at a specific position, and the above-described corrective force operating direction and / or working reference point In order to change the position of the anchor unit has to change the position of the procedure and the problem of giving a great burden to the gums and alveolar bone of the patient.

In addition, the particular part of the jaw has a problem in that it is difficult to place the anchor unit has a limit in providing orthodontic force in a variety of positions and directions, and this has a lot of restrictions in implementing the dental movement in the ideal direction desired by the operator.

The present invention has been made to solve the problems of the conventional orthodontic anchor, that is, the orthodontic anchor unit, a orthodontic anchor unit having a structure that can set the action point and the direction of operation of the orthodontic force and the orthodontic including the same The object is to provide a device.

Another object of the present invention is to provide a dental orthodontic anchor unit and a dental orthodontic device including the same structure that can change the operating point and the direction of operation of the corrective force even in a state placed in a particular position of the jaw bone.

In order to solve the above object, the present invention is a dental orthodontic anchor unit which is fixed to the jaw acting as an anchor in the orthodontic treatment, anchor screw placed in the jaw; A support arm provided on the anchor screw and extending a predetermined distance away from a center axis of the anchor screw; And it provides a dental orthodontic anchor unit comprising a locking portion provided on the support arm for the connection of the traction member.

The orthodontic anchor unit according to the present invention may be configured to further include a fixture coupled to one end of the anchor screw to fix the support arm to the anchor screw.

The anchor screw has a female thread formed at one end of the anchor screw; The fastener is a fixing bolt that is screwed to one end of the anchor screw to restrain the support arm.

And the locking portion includes any one of a ring and a protrusion provided at the end of the support arm.

Here, the protrusion is a screw which is screwed to the outer end of the support arm to form the locking portion.

In the present invention, the support arm is preferably provided with an angle adjustment to the anchor screw. Accordingly, the direction of orthodontic force and orthodontic force can be set in various ways.

A polygonal coupling hole is formed at the rotation center of the support arm; One end of the anchor screw is formed with a polygonal engaging projection corresponding to the shape of the coupling hole to be fitted into the coupling hole.

More specifically, the support arm is characterized in that the angle can be adjusted by an angle of 45 degrees, but is not limited thereto.

On the other hand, the support arm is preferably configured to include a plurality of branches (extension) extending a predetermined distance in a direction away from the central axis of the anchor screw at one end of the anchor screw. For example, the support arm forms a 'T' shape with the anchor screw.

As another aspect for achieving the above object, the present invention provides a dental orthodontic device in which the orthodontic anchor unit is applied as a fixed source for orthodontics.

According to the orthodontic anchor unit according to the present invention having the above-described structure has the following effects.

First, according to the present invention, since the plurality of engaging portions are positioned at a distance from the axis of the anchor screw for the connection of the traction member for providing the corrective force, the working point of the corrective force can be changed according to the intention of the operator, the anchor screw Since the operating point of the corrective force can be set even at the position where is not placed, the applicability and convenience are improved.

Second, according to the present invention, since the support arm can be attached and detached, the traction member can be connected to the engaging portion of the support arm or the traction member can be connected to the anchor screw itself, thereby improving the selectivity according to the intention of the operator.

Third, according to the present invention, by providing a plurality of engaging portions on the support arm for the connection of the traction member for providing orthodontic force, it is possible to variously set the action point and the direction of action of the orthodontic force during orthodontic surgery.

Fourth, according to the present invention, the support arm is provided so that the angle adjustment to the anchor screw, it is possible to change the operating point and the direction of action of the corrective force even in the state where the anchor screw is placed in a particular position of the jaw bone.

1 is a view showing an example of a state in which the first embodiment of the orthodontic anchor unit according to the present invention is applied to the inside of the mouth of the subject.
Figure 2 is a perspective view of the orthodontic anchor unit of Figure 1;
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
4 is a plan view illustrating the angle adjustment of the support arm with respect to the anchor screw in FIG.
5 is a perspective view of the orthodontic anchor unit according to the second embodiment of the present invention.
6 is an exploded perspective view of FIG. 5.
7 is a perspective view of the orthodontic anchor unit according to the third embodiment of the present invention.
Figure 8 is a perspective view of the orthodontic anchor unit according to a fourth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted below.

Orthodontic anchor unit according to an embodiment of the present invention is to be able to set the action point and the direction of action of the orthodontic force during the orthodontic procedure, will be described in the orthodontic anchor unit according to various embodiments of the present invention. .

1 is a view showing a state in which the orthodontic anchor unit is installed according to an embodiment of the present invention, Figure 2 is a perspective view showing the orthodontic anchor unit according to a first embodiment of the present invention, Figure 3 is an exploded view of Figure 2 4 is a perspective view, and FIG. 4 is a state diagram illustrating adjusting an engagement angle of the support arm with respect to the anchor screw in FIG. 1.

1 to 3, the orthodontic anchor unit according to the first embodiment of the present invention is fixed to the jaw bone and acts as an anchor in an orthodontic procedure, and is placed in the jaw bone 100. Anchor screw 110, which is provided in the anchor screw 110, the support arm (120, Support Arm) extending in a direction away from the central axis of the anchor screw 110, the towing member 150, It includes a locking portion 130 provided on the support arm 120 for the connection of.

The orthodontic anchor unit may add orthodontic force to a tooth or jaw by supporting a traction member 150 that provides orthodontic force during orthodontic surgery, and the traction member 150 may be a rubber band having a predetermined or more elastic force. Springs and the like may be applied.

The orthodontic anchor unit according to the present embodiment is applicable to both jaw bone, that is, the upper jaw 101 and the lower jaw 102, and is firmly attached to the jaw bone by using the anchor screw 110 screw fastening tool. To be fixed, a thread is formed on the outer circumferential surface of the anchor screw 110 for this purpose. The anchor screw 110 is preferably made of a material such as titanium (titanium) does not have a rejection reaction to the human body.

As shown in FIGS. 2 and 3, the support arm 120 is provided at one end of the anchor screw 110, that is, at an upper region thereof, and extends a predetermined distance in a direction away from the central axis of the anchor screw 110. . Specifically, the support arm 120 includes a plurality of branches (121, Branch) extending a predetermined distance in a direction away from the central axis of the anchor screw 110 at one end of the anchor screw 110, the branch Each of the 121 parts is provided with the locking portion 130. In this embodiment, one end of the anchor screw 110 is a screw head portion as a portion exposed to the outside of the gum.

2 and 3, in this embodiment, the branches 121 of the support arm are integrally manufactured as one body and extend in opposite directions symmetrically with respect to each other at the central axis of the anchor screw 110. A pair is provided to form a diagram. Accordingly, the support arm 120 is provided in a substantially straight form as a whole. On the other hand, when viewed from the side, the support arm 120 forms an approximately T-shape together with the anchor screw 110. However, the present invention is not limited to the above description, and the angle between the plurality of branches 121 may be formed to be an acute angle, and the support arm may have three or more branches.

Here, the support arm 120 may be fixed to the anchor screw 110 or may be manufactured in one body, that is, a single body so that the relative position with respect to the anchor screw 110 is not variable, in the present embodiment, the support It is preferable that the arm 120 is provided to allow angle adjustment with respect to the anchor screw 110. Therefore, the operator can change the position of the support arm 120 with respect to the anchor screw 110 as necessary to change the position of the ring 331 or the protrusion 131 to be described later, to the traction member 150 It is possible to adjust the action point and the direction of action of the correction force applied by.

Hereinafter, the structure that can change the angle through the rotation of the support arm 120 on the basis of the fixed state of the anchor screw 110 will be described in more detail.

3 and 4, a coupling hole 122 is formed at the center of rotation of the support arm 120, that is, at the center of the branches, and at one end of the anchor screw 110, that is, at the upper end of the coupling hole ( Coupling protrusion 112 is fitted to the 122 is formed. In this embodiment, in order to change the angle of the support arm 120, the coupling hole 122 is formed in a polygon, in particular a regular polygon, or a plurality of angle division grooves 124 formed along the inner circumferential surface of the coupling hole, for example For example, it may be formed as an internal serration structure.

One end of the anchor screw 110, that is, an upper end of the screw head, is provided in a shape corresponding to the coupling hole 122 so that the coupling protrusion 112 is fitted into the coupling hole 122. That is, the coupling protrusion 112 is formed of a polygon corresponding to the coupling hole 122, that is, a regular polygon, or the angle division protrusion 113 corresponding to the angle division groove 124 of the coupling protrusion 112 It may be a structure provided along the circumference.

 In this embodiment, eight angle division grooves 124 are formed in the coupling hole 122 divided into eight angles at 45 degrees so that the support arm 120 can be angle-adjusted in multiple steps by 45 degrees. The angle dividing protrusion 113 is formed on the outer circumferential surface of the coupling protrusion 112, but is not limited thereto. The coupling hole 122 and the coupling protrusion 112 may be formed in different numbers such as four angles or six angles. In the case of divided into four angles, the support arm is angled in units of 90 degrees, and in the case of six angles, the support arms are angled in units of 60 degrees.

The coupling hole 122 and the coupling protrusion 112 will be described in detail. In the inner circumferential surface of the coupling hole 122, the first convex portion 123 and the first convex portion 123 protrude inwards. The first recessed area 124 is relatively recessed to form the inner serration, and the first recessed area 124 becomes the angular split groove. In this case, the first convex portion 123 and the first concave portion 124 are alternately disposed along the inner circumferential surface of the coupling hole 122.

Similarly, the coupling protrusion 112 is configured to protrude a predetermined height from one end of the anchor screw, the second concave portion corresponding to the first convex portion 123 of the coupling hole on the outer circumferential surface of the coupling protrusion 112. A region 114 and a second convex portion 113 corresponding to the first concave portion 124 of the coupling hole are provided to form an external serration, wherein the first convex portion 123 is formed. It becomes the said angle division protrusion. Here, the second convex portion 113 and the second concave portion 114 are alternately disposed along the outer circumferential surface direction of the engaging protrusion 112.

Accordingly, by turning the support arm 120 in a state where the anchor screw 110 is fixed, for example, in the jaw bone, the angle can be easily changed in various stages. That is, even when the anchor screw 110 is placed at a specific position of the jaw bone, the point of action and the direction of the corrective force can be easily changed.

In the related drawings, the first block portion and the first concave portion regions 123 and 124, the second convex portion and the second concave portion regions 113 and 114 are each provided in a rounded shape, but are not limited thereto.

For example, the first convex portion 123 and the second convex portion 113 are formed in a substantially triangular shape, and the first concave portion 124 and the second concave portion 114 are similarly formed in a triangular shape ( It is formed to have a cross-section of the cross section, and the inner serration having a triangular tooth cross-section and the external serration structure is mutually engaged, thereby minimizing the occurrence of slip or play in the contact surface between the coupling protrusion 112 and the coupling hole 122. Or can be prevented.

Accordingly, in the state in which the support arm 120 is coupled to the anchor screw 110, the support arm 120 is further minimized to move in the left and right or up and down directions so that the traction force and the traction direction of the traction member 150 are more stable. It can work.

Next, the engaging portion 130 is provided on the support arm 120 so that the traction member 150 is connected, in this embodiment the support arm 120, in particular, the protrusion provided on the outer end of the support arm ( 131, Protrusion). As will be described later, the locking portion 130 may include a hook 331, for example, a 'C' shape or a groove-shaped hook or other hook type.

Here, the protrusion 131 may be configured by a screw 131 that is screwed to the support arm 120 to form a locking groove of the towing member. For this purpose, the support arm 120 has a screw fastening hole having a female thread formed therein. 125 is formed. In this embodiment, the protrusions 131 are provided in the support arm 120 in total, so that the operator may adjust at least two of the protrusions 131 to adjust the direction and strength of the traction force through the traction member 150. It is possible to hook the towing member 150 selectively to either.

In other words, an angle division protrusion is formed in one of the coupling hole and the coupling protrusion, and a plurality of angle division grooves are formed in the other, and the angle of the support arm is changed as the position where the angle division protrusion is assembled is changed. May be adjusted.

For example, one protrusion (angle dividing protrusion) is formed on the outer circumferential surface of the coupling protrusion 112 in a state where the coupling protrusion 112 is formed in a cylindrical shape, and the coupling hole 122 is formed in a circular shape. When a plurality of grooves (angular split grooves) equally divided on the inner circumferential surface of the hole 122 are formed in the same shape as the protrusions, the direction in which the protrusions are assembled is changed so that the arrangement direction of the support arm 120 is changed. As a result, the working point and the working direction of the corrective force are changed.

On the other hand, the protrusion 131 is provided at each of both ends of the support arm 120, that is, each one of the outer ends of the branches, but is not limited to this, both sides based on the central axis of the anchor screw 110 At least one may be provided in each. For example, a plurality of protrusions 131 may be provided in both directions, that is, each of the branches, based on the central axis of the anchor screw 110. Although not shown, the protrusion may be configured to be pressed, that is, a button structure.

Orthodontic anchor unit according to the invention, as shown in Figure 2 and 3, the fastener 140 is coupled to one end of the anchor screw 110 to secure the support arm 120 to the anchor screw 110 More).

The fastener 140 is to fix the support arm 120 to the anchor screw 110 to prevent the support arm 120 from being separated from the anchor screw 110, the screw to the anchor screw 110 Combined.

Specifically, the fixture 140 may be composed of a fixing bolt including a head portion having a relatively larger cross-sectional area than the coupling hole 122 formed in the support arm 120 and a screw body portion integrally connected to the screw head portion, Hereinafter, the fixing bolt uses the same reference numeral 140 as the fixing tool.

On the other hand, one end (upper) region of the anchor screw, in particular the inside of the engaging projection is provided with a groove for forming the female thread portion 115, the screw body portion of the fixing bolt 140, the female thread portion 115 of the anchor screw ), The support arm 120 is fixed and constrained to the top of the anchor screw. Accordingly, after removing the fixture 140, the operator may adjust the desired angle of the support arm 120, and the fixture in the state in which the support arm 120 is not mounted to the anchor screw 110. 140 may be coupled to the orthodontic force in the center of the anchor screw.

Next, the orthodontic anchor unit according to the second embodiment of the present invention will be described with reference to FIGS. 5 and 6.

5 is a perspective view illustrating an orthodontic anchor unit according to a second embodiment of the present invention, and FIG. 6 is an exploded perspective view of FIG. 5.

The orthodontic unit according to the second embodiment includes an anchor screw 110, a support arm 120, a locking portion 130, and a fastener 140, and includes an anchor screw 110 and a support arm 120. Since the technical concept described in the above-described first embodiment may be equally applied to the locking unit 130, repeated descriptions thereof will be omitted.

In the present embodiment, the function of the fastener 140 is as described in the above-described embodiment, the operator 140 to walk the traction member 150 as needed, as in the protrusion 131 described above. Auxiliary protrusion 241 is further provided. The auxiliary protruding portion 241 includes a screw body portion protruding from the fixing unit 140 and a screw head portion having a relatively large cross-sectional area compared to the body portion, and thus a towing member (top) of the anchor screw 110. A separate locking groove capable of connecting 150 may be formed.

The auxiliary protrusion 241 may be integrally formed with the fastener 140, or may be screwed to the fastener 140 through a screw coupling method or the like.

As described above, by providing the auxiliary protrusion 241 for connecting the traction member 140 to the fixing unit 140 separately, the operator may be a traction member on at least one of the plurality of protrusions 131 and the auxiliary protrusion 241. It is possible to selectively connect the 150, and accordingly it is possible to set the action point and the direction of action of the corrective force through the traction member 150.

Next, FIG. 7 is a perspective view illustrating an orthodontic anchor unit according to a third embodiment of the present invention. Referring to FIG. 7, an orthodontic anchor unit according to a third embodiment of the present invention will be described.

The orthodontic anchor unit according to the third embodiment includes an anchor screw 110, a support arm 120, a locking portion, and a fastener 140, wherein the anchor screw 110 and the fastener 140 are described above. Since it is the same as that of the first embodiment, the repeated description thereof will be omitted.

In the present embodiment, the engaging portion includes a ring 331 provided in the support arm 120, unlike the first embodiment. The ring 331 is provided at the end (outer end) of the support arm 120, and the end of the support arm 120 is formed in a hook shape to walk the towing member 150 as a support arm ( 120 is integrally formed with one body.

In addition, the fixing unit 140 may be provided with an auxiliary protrusion 441, which is shown in the fourth embodiment of the orthodontic anchor unit shown in FIG. 8. Since the auxiliary protrusion 441 has the same function as the auxiliary protrusion 241 described in the above-described second embodiment, an additional description thereof will be omitted.

Having looked at the preferred embodiment according to the present invention as described above, in addition to the embodiment described above, the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention It is obvious to them.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

100: jaw 110: anchor screw
112: engaging protrusion 120: support arm
121: branch 122: coupling hole
125: screw fastening hole 130: locking portion
131: protrusion 140: fixture
150: towing members 241,441: auxiliary protrusion
331: ring

Claims (6)

An orthodontic anchor unit fixed to the jaw and acting as an anchor in an orthodontic procedure,
Anchor screws placed in the jaw bone;
A support arm provided on the anchor screw and extending a predetermined distance away from a center axis of the anchor screw; And
Orthodontic anchor unit comprising a locking portion provided on the support arm for the connection of the traction member. The method of claim 1,
The orthodontic anchor unit is configured to further include a fixture coupled to one end of the anchor screw to fix the support arm to the anchor screw; The anchor screw has a female thread formed at one end of the anchor screw; The fastener is a orthodontic anchor unit, characterized in that the fixing bolt which is screwed to one end of the anchor screw to restrain the support arm. The method of claim 1,
The engaging portion orthodontic anchor unit, characterized in that it comprises any one of a ring and a protrusion provided at the end of the support arm. The method of claim 1,
The support arm is orthodontic anchor unit, characterized in that the angle adjustment is provided to the anchor screw. 5. The method of claim 4,
A polygonal coupling hole is formed at the rotation center of the support arm; One end of the anchor screw is orthodontic anchor unit, characterized in that the engaging projection of the polygon corresponding to the shape of the coupling hole is formed to be fitted to the coupling hole. The method according to any one of claims 1 to 5,
The support arm is orthodontic anchor unit, characterized in that it comprises a plurality of branches (branch) extending a predetermined distance in a direction away from the central axis of the anchor screw at one end of the anchor screw.

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